Event contract
Required events, payload fields and business actions agreed.
WebSoftLeader
WebSoftLeaderVladimir Nikolaev · specialist WebSoftLeader
Webhook handlers that turn events into controlled actions
React to payment, CRM or order events without repeatedly polling for changes. We build handlers with provider verification, repeat-event controls and a documented recovery procedure.
Start this briefStarting price$55/hourIndicative timelineAfter scope review
WebSoftLeaderVladimir Nikolaev · specialist WebSoftLeader
What we build
From an incoming event to a traceable result
Verified endpoint
Provider-supported authentication or signature verification implemented.
Processing controls
Repeat handling, appropriate queueing and recovery rules.
Operational evidence
Results, failed records and replay instructions documented.
Let’s agree what you actually needWe’ll shape the scope around your priorities.
RECENT WORK
Explore our workWork you can explore.
Actual project screenshots. Some client interfaces are in their original language.
Client sites and products
Silver Summit Build
Home services in the United States. Actual project screenshots. Some client interfaces are in their original language.
Client sites and products
MP CMS
Ecommerce platform. Actual project screenshots. Some client interfaces are in their original language.
Client sites and products
ARTEL
Commercial interior projects. Actual project screenshots. Some client interfaces are in their original language.
How the project moves forward
How the project moves forward
- 01
Brief and initial prototype
We define the scope and prepare the agreed first prototype or work plan before payment.
- 02
Approve and start
You approve the prototype and pay 30%. We begin the agreed implementation.
- 03
Review the working version
We show the main pages and functions or agreed milestone deliverables. After acceptance, you pay the next 30%.
- 04
Accept the completed project
We finish the agreed checks and hand over the project, materials and access. You pay the remaining 40% after acceptance.
SCOPE · BUDGET · TIMELINE
Starting price
Scope agreed before work begins. All prices in USD. Applicable taxes and third-party fees are confirmed in the proposal.
- Event contract
- Verified endpoint
- Processing controls
- Operational evidence
Starting price$55/hourAfter scope reviewScope agreed before work begins.
PAYMENT BY PROJECT MILESTONES
Approve a result. Pay for the next milestone.
We agree the scope and prepare the first prototype before the first payment. You can review the proposed structure and customer journey before deciding to proceed.
Your first prototype, before payment
The agreed initial prototype covers the key page or customer journey. For SEO, advertising and other projects without an interface, the first reviewable result is a proposed work plan. The number of screens and revisions is agreed in the brief.
- 0130%
After prototype approval
You approve the prototype or work plan and pay 30% of the agreed project price. We then begin implementation.
- 0230%
After the working version
We demonstrate the agreed main pages and functions, or the named project deliverables. Once you accept this milestone, the next 30% is due.
- 0340%
After project acceptance
We complete the agreed checks, deliver the project and hand over the agreed materials and access. The remaining 40% is paid after acceptance.
This schedule applies to projects with a fixed scope. Monthly work and small hourly tasks have separately agreed terms. Advertising spend, hosting, licences and third-party fees are listed separately in the proposal.
We deliver remotely. Briefing, reviews and handover take place online, with the meeting times and working language agreed in advance.
HOW WE WORK
Choose the event that authorises the action
Scope, selection criteria and practical delivery details.
An order created, a payment pending and a payment completed are different signals. We map each required event to its permitted action.
Where a notification only supplies a record identifier, the handler retrieves the relevant provider state before deciding what to change.
Expect repeat delivery and changing state
The provider's delivery rules determine the design. We plan for repeated messages and avoid assuming all events arrive in order.
A successful HTTP response should have a defined meaning. If processing continues in a queue, the durable record and failed-job procedure must be part of the scope.
Test verification and recovery as well as success
Acceptance includes an invalid message, repeated delivery, unavailable dependencies and a recoverable failure.
Vladimir Nikolaev agrees the monitoring and replay procedure with you. Logs identify the event and outcome without storing credentials or unnecessary payload data.
Related services and expertise
CEO and web development & SEO expert
Vladimir Nikolaev
CEO and web development & SEO expert. Web developer and SEO specialist since 2015. Vladimir Nikolaev reviews data rules, implementation choices and acceptance checks with you, so the technical work follows a defined business task.
Questions before we start
Questions before we start
Answered by Vladimir Nikolaev.
Can the same event arrive twice?
Some providers retry notifications. We implement repeat handling according to the event and provider contract.
Does every provider sign messages the same way?
No. Verification follows the provider's supported method, not a universal signature assumption.
Can failed events be replayed?
A controlled replay procedure can be included, with safeguards against repeating completed business actions.
Can you repair our current webhook?
Yes. Event samples and delivery logs help separate provider delivery problems from application processing failures.
NEXT STEPS
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START WITH YOUR PROJECT
Send the event and the action it should trigger
Name the provider and share a non-sensitive sample. We will define verification, processing and recovery.