How to use ConfigurationBuilder staticly in an Azure Function v2 (core)?
While porting an Azure Function from v1 to v2 there is a change in how the configuration manager is used to read the local.settings.json.
Previously, I used the following code to enable redis connection pooling between function instances:
public static class Redis
{
/// <summary>
/// Initializes the REDIS connection.
/// </summary>
private static readonly Lazy<ConnectionMultiplexer> LazyConnection = new Lazy<ConnectionMultiplexer>(() =>
{
return ConnectionMultiplexer.Connect(ConfigurationManager.AppSettings["CacheConnection"]);
});
public static IDatabase Database => LazyConnection.Value.GetDatabase();
}
However in v2 the ConfigurationManager is no longer available and we have to use something like:
new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
However, because it requires the context which is only available during function runtime we cannot create a static class shared across all functions. Is it possible to read the app.settings.json statically in Azure Functions v2?
c#
azure .net-core azure-functions edited 21 hours ago
Jerry Liu
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asked yesterday
Yellowy T.Yellowy T.
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While porting an Azure Function from v1 to v2 there is a change in how the configuration manager is used to read the local.settings.json.
Previously, I used the following code to enable redis connection pooling between function instances:
public static class Redis
{
/// <summary>
/// Initializes the REDIS connection.
/// </summary>
private static readonly Lazy<ConnectionMultiplexer> LazyConnection = new Lazy<ConnectionMultiplexer>(() =>
{
return ConnectionMultiplexer.Connect(ConfigurationManager.AppSettings["CacheConnection"]);
});
public static IDatabase Database => LazyConnection.Value.GetDatabase();
}
However in v2 the ConfigurationManager is no longer available and we have to use something like:
new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
However, because it requires the context which is only available during function runtime we cannot create a static class shared across all functions. Is it possible to read the app.settings.json statically in Azure Functions v2?
c#
azure .net-core azure-functions edited 21 hours ago
Jerry Liu
9,9331728
asked yesterday
Yellowy T.Yellowy T.
212
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
While porting an Azure Function from v1 to v2 there is a change in how the configuration manager is used to read the local.settings.json.
Previously, I used the following code to enable redis connection pooling between function instances:
public static class Redis
{
/// <summary>
/// Initializes the REDIS connection.
/// </summary>
private static readonly Lazy<ConnectionMultiplexer> LazyConnection = new Lazy<ConnectionMultiplexer>(() =>
{
return ConnectionMultiplexer.Connect(ConfigurationManager.AppSettings["CacheConnection"]);
});
public static IDatabase Database => LazyConnection.Value.GetDatabase();
}
However in v2 the ConfigurationManager is no longer available and we have to use something like:
new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
However, because it requires the context which is only available during function runtime we cannot create a static class shared across all functions. Is it possible to read the app.settings.json statically in Azure Functions v2?
c#
azure .net-core azure-functions edited 21 hours ago
Jerry Liu
9,9331728
asked yesterday
Yellowy T.Yellowy T.
212
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
While porting an Azure Function from v1 to v2 there is a change in how the configuration manager is used to read the local.settings.json.
Previously, I used the following code to enable redis connection pooling between function instances:
public static class Redis
{
/// <summary>
/// Initializes the REDIS connection.
/// </summary>
private static readonly Lazy<ConnectionMultiplexer> LazyConnection = new Lazy<ConnectionMultiplexer>(() =>
{
return ConnectionMultiplexer.Connect(ConfigurationManager.AppSettings["CacheConnection"]);
});
public static IDatabase Database => LazyConnection.Value.GetDatabase();
}
However in v2 the ConfigurationManager is no longer available and we have to use something like:
new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
However, because it requires the context which is only available during function runtime we cannot create a static class shared across all functions. Is it possible to read the app.settings.json statically in Azure Functions v2?
c#
azure .net-core azure-functions c#
azure .net-core azure-functions edited 21 hours ago
Jerry Liu
9,9331728
asked yesterday
Yellowy T.Yellowy T.
212
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 21 hours ago
Jerry Liu
9,9331728
asked yesterday
Yellowy T.Yellowy T.
212
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 21 hours ago
Jerry Liu
9,9331728
edited 21 hours ago
Jerry Liu
9,9331728
edited 21 hours ago
Jerry Liu
9,9331728
9,9331728
asked yesterday
Yellowy T.Yellowy T.
212
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Yellowy T.Yellowy T.
212
asked yesterday
Yellowy T.Yellowy T.
212
212
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Yellowy T. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
1 Answer
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We can use
var config = new ConfigurationBuilder()
.AddEnvironmentVariables()
.Build();
string cacheConnection = config["CacheConnection"];
Or simply
Environment.GetEnvironmentVariable("CacheConnection");
Values in local.settings.json(Also Application settings on Azure) are injected into EnvironmentVariables automatically when function host starts.
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
add a comment |
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1 Answer
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votes
1 Answer
1
active
oldest
votes
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votes
active
oldest
votes
We can use
var config = new ConfigurationBuilder()
.AddEnvironmentVariables()
.Build();
string cacheConnection = config["CacheConnection"];
Or simply
Environment.GetEnvironmentVariable("CacheConnection");
Values in local.settings.json(Also Application settings on Azure) are injected into EnvironmentVariables automatically when function host starts.
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
add a comment |
We can use
var config = new ConfigurationBuilder()
.AddEnvironmentVariables()
.Build();
string cacheConnection = config["CacheConnection"];
Or simply
Environment.GetEnvironmentVariable("CacheConnection");
Values in local.settings.json(Also Application settings on Azure) are injected into EnvironmentVariables automatically when function host starts.
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
add a comment |
We can use
var config = new ConfigurationBuilder()
.AddEnvironmentVariables()
.Build();
string cacheConnection = config["CacheConnection"];
Or simply
Environment.GetEnvironmentVariable("CacheConnection");
Values in local.settings.json(Also Application settings on Azure) are injected into EnvironmentVariables automatically when function host starts.
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
We can use
var config = new ConfigurationBuilder()
.AddEnvironmentVariables()
.Build();
string cacheConnection = config["CacheConnection"];
Or simply
Environment.GetEnvironmentVariable("CacheConnection");
Values in local.settings.json(Also Application settings on Azure) are injected into EnvironmentVariables automatically when function host starts.
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
answered 21 hours ago
Jerry LiuJerry Liu
9,9331728
9,9331728
add a comment |
add a comment |
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