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Understanding the Ethereum Testnet API: A Guide to blockchain.info
As a developer working with the Ethereum blockchain, you are probably familiar with the testnet as a stepping stone for new projects and experiments. However, accessing the full range of APIs provided by blockchain.info, a popular open source wallet, can be difficult due to its implementation on a private network.
The key is understanding how the testnet differs from the mainnet, especially in terms of API usage. In this article, we will look at what is available on the testnet and how it compares to the mainnet.
Why use the blockchain.info Testnet?
Before we delve into the APIs, let’s briefly discuss why you might want to use the testnet:
- Testing new ideas: The testnet provides developers with a safe space to experiment with new features without risking significant financial loss.
- Proof-of-Concept (PoC) development: The testnet can be used as a starting point for developing proofs-of-concepts, which are often more robust and scalable than the mainnet.
Accessing the blockchain.info Testnet APIs
Now that we know why you might want to use the testnet, let’s explore the available APIs:
Receiving new addresses
The most common API call on the testnet is for receiving new addresses. However, unlike the mainnet, there is no specific URL for this purpose.
Here is an example of how to receive new addresses using curl:
curl -X POST \
Replace $xpub with your public Ethereum address.
Receiving transaction logs
To receive transaction logs, you will need to use a different endpoint. The testnet receive API is not available for this purpose; however, you can use the main network blockchain.info API instead:
curl -X POST \
However, keep in mind that you will not be able to see the transaction logs as they are private. To view them publicly, use the blockchain.info main network API with a specific address and timestamp:
curl -X GET \
This will return the transaction logs for the specified address at the given timestamp.
Receiving Transaction Fees
The blockchain.info main network API also provides a way to receive transaction fees:
curl -X POST \
Replace $fee with the desired fee amount.
Getting New Keys
If you need to generate new keys, you can use the blockchain.info mainnet API:
curl -X POST \
This will return a list of available private keys for your Ethereum address.
In short, while the blockchain.info testnet API offers some useful endpoints, it is not as comprehensive as the mainnet. To access the full range of APIs, you will need to use the mainnet. However, with a little creativity and an understanding of how the testnet differs from the mainnet, you can still use these capabilities for your projects.
Conclusion
In this article, we explored what is available on the blockchain.info testnet and how it compares to its mainnet counterpart. By using the right APIs and understanding the differences between them, developers can unlock new possibilities for testing and experimenting with their Ethereum projects.
