# IDistributedApplicationBuilder.addParameter

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Defined on: [IDistributedApplicationBuilder](/reference/api/typescript/aspire.hosting/idistributedapplicationbuilder.md)
- Version: `13.4.0`
- Kind: `method`

Adds a parameter resource

## Definition

```typescript
interface IDistributedApplicationBuilder {
  // ... omitted for brevity
  addParameter(
      name: string,
      value?: string,
      publishValueAsDefault?: boolean,
      secret?: boolean): ParameterResource;
}
```

## Signature

```typescript
addParameter(
    name: string,
    value?: string,
    publishValueAsDefault?: boolean,
    secret?: boolean): ParameterResource
```

## Parameters

- `name` (`string`)
- `value` (`string`) `optional`
- `publishValueAsDefault` (`boolean`) `optional` `= False`
- `secret` (`boolean`) `optional` `= False`

## Returns

[ParameterResource](/reference/api/typescript/aspire.hosting/parameterresource.md) `builder`

## Defined on

- [IDistributedApplicationBuilder](/reference/api/typescript/aspire.hosting/idistributedapplicationbuilder.md) -- `interface`